A water stop ring with a split hinge rubber ring

Abstract

The present invention relates to a water stop ring with a split hinge rubber ring, which comprises a pre-buried steel ring plate that is arranged around the opening of the well hole and fixedly arranged on the inner lining wall of the well. On the side of the pre-buried steel ring plate away from the inner lining wall of the well, a rubber water stop ring and a steel pressing ring are sequentially arranged. A plurality of hinge pressing plates are arranged around the outer side of the steel pressing ring. The hinge pressing plate comprises a first hinge fixedly connected with the steel pressing ring and a second hinge extending into the well hole opening. The pre-buried steel ring plate, the rubber water stop ring, the steel pressing ring and the hinge pressing plate are fixedly connected by bolts. An air bag located between the inner wall of the well hole and the inner wall of the rubber water stop ring is detachably installed on the rubber water stop ring. A hinge slot is inwardly formed on the outer wall of the rubber water stop ring. The end part of the second hinge turns inwards around the rotating end into the well hole opening and is inserted and installed in the hinge slot. The end part of the second hinge is fixed in the hinge slot to press the outer surface of the rubber water stop ring against the outer wall of the jacking pipe.

Description

Technical Field

[0002] The present invention relates to the technical field of pipe jacking construction, and particularly to a water stop ring with a split hinge rubber ring.

Background Art

[0004] In pipe jacking projects, in order to enable the pipe to smoothly enter and exit the working well, generally, the reserved opening in the working well is slightly larger than the outer diameter of the pipe section. During jacking, effective measures need to be taken to seal this gap. Otherwise, groundwater and sediment will flow into the working well through this gap, causing the collapse of the ground surface above the opening and even accidents. Therefore, water stop at the opening during pipe jacking is a crucial link that cannot be ignored. Generally, a rubber flange is used for water stop at the opening, but there are still problems with unsatisfactory water stop effects, especially the inability to prevent groundwater, sediment, and thixotropic slurry from flowing into the working well through the gap between the pipe section and the water stop ring.

[0005] During the process of pipe jacking from the entry opening, due to the continuous friction between the outer wall of the pipe jacking and the water stop rubber ring, the water stop rubber ring is prone to deformation, resulting in a gap between the water stop rubber ring and the outer wall of the pipe jacking. As a result, a good anti-leakage effect cannot be guaranteed, and water leakage at the opening occurs. Especially in the case of shallow groundwater and much surface water seepage, the water leakage phenomenon is serious, making it difficult to ensure construction safety. The rubber water stop ring is not only difficult to replace but also greatly reduces the working efficiency of pipe jacking construction.

[0006] Due to the continuous friction between the outer wall of the pipe jacking and the end of the hinge pressing plate, the hinge pressing plate is worn. The wear degrees of the hinge pressing plate and the pipe jacking are different, and it needs to be replaced irregularly and at any time, which greatly reduces the working efficiency. Moreover, the frictional resistance between the hinge pressing plate and the outer wall of the pipe jacking is large, which is not conducive to pipe jacking construction.

Summary of the Invention

[0008] To solve the above problems, the present invention provides a water stop ring with a split hinge rubber ring.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A water stop ring with a split hinge rubber ring, comprising a pre-embedded steel ring plate that is arranged around the opening of the well hole and fixedly arranged on the inner lining wall of the well. On the side of the pre-embedded steel ring plate away from the inner lining wall of the well, a rubber water stop ring and a steel pressing ring are sequentially arranged. A plurality of hinge pressing plates are arranged around the outer side of the steel pressing ring. The hinge pressing plate includes a first hinge fixedly connected to the steel pressing ring and a second hinge extending into the opening of the well hole. The pre-embedded steel ring plate, the rubber water stop ring, the steel pressing ring and the hinge pressing plate are fixedly connected by bolts. An airbag is detachably installed between the inner wall of the well hole and the inner wall of the rubber water stop ring on the rubber water stop ring. A hinge slot is inwardly formed on the outer wall of the rubber water stop ring. The end of the second hinge is turned inward around the rotating end into the opening of the well hole and inserted and installed in the hinge slot. The end of the second hinge is fixed in the hinge slot to press the outer surface of the rubber water stop ring against the outer wall of the jacking pipe.

[0011] As a preferred embodiment, it is further defined that: a ventilation pipe is penetrated through the rubber water stop ring. One end of the ventilation pipe extends into the opening of the well hole and is connected to the airbag through a check valve. The other end of the ventilation pipe can be externally connected to an air charging device.

[0012] As a preferred embodiment, it is further defined that: the ventilation pipe is slidably and fixedly connected to the rubber water stop ring.

[0013] As a preferred embodiment, it is further defined that: the ventilation pipe and the rubber water stop ring are integrally formed by vulcanization.

[0014] As a preferred embodiment, it is further defined that: the first hinge is fixedly connected to the pre-embedded steel ring plate, the rubber water stop ring and the steel pressing ring by bolts.

[0015] As a preferred embodiment, it is further defined that: the upper end of the rubber water stop ring is fixed by bolts. The lower end of the rubber water stop ring is turned inward into the opening of the well hole. The outer side of the rubber water stop ring contacts the outer wall of the jacking pipe to form a sealing layer.

[0016] As a preferred embodiment, it is further defined that: the pre-embedded steel ring plate and the inner lining wall of the well are anchored and fixed by fixing components. The fixing components are fixedly connected to the pre-embedded steel ring plate.

[0017] The beneficial effects of the present invention are as follows: The water stop ring of the present invention prevents water leakage and grout leakage caused by the outward turning of the rubber water stop ring. The hinge of the hinge pressing plate is inserted into the rubber water stop ring, preventing wear of the hinge, reducing the friction with the outer wall of the pipe jack during pipe jacking, increasing the pipe jacking speed, improving work efficiency. The airbag squeezes the rubber water stop ring to make it closely fit the outer wall of the pipe jack, and the hinge pressing plate stabilizes the position of the rubber water stop ring. The airbag, rubber water stop ring and hinge pressing plate cooperate with each other, having a good anti-leakage effect. During the construction process, parts such as the rubber water stop ring can be replaced while stopping water, improving the stability of the device and ensuring safety during construction.

Description of the Drawings

[0019] Figure 1 It is a plan view of the present invention provided at the water stop opening;

[0020] Figure 2 is Figure 1 the sectional view taken along A-A in

[0021] Figure 3 is Figure 2 a partially enlarged view of a specific embodiment at position A of

[0022] Figure 4 is Figure 2 a partially enlarged view of a specific embodiment at position A of

[0023] Figure 5 is Figure 2 a partially enlarged view of a specific embodiment at position A of

Detailed Embodiment

[0025] The following further elaborates on the present invention in detail in conjunction with the drawings and specific embodiments:

[0026] As shown in the attached Figure 1 to the attached Figure 5As shown in the figure, a water stop ring with a split hinge rubber ring includes a pre-embedded steel ring plate 1 that is arranged around the opening of the well hole 8 and fixedly installed on the inner lining wall 7 of the well. On the side of the pre-embedded steel ring plate 1 away from the inner lining wall 7 of the well, a rubber water stop ring 2 and a steel pressing ring 3 are arranged in sequence. A number of hinge pressing plates 4 are arranged around the outer side of the steel pressing ring 3. The hinge pressing plate 4 includes a first hinge 41 fixedly connected to the steel pressing ring 3 and a second hinge 42 extending into the opening of the well hole 8; the pre-embedded steel ring plate 1, the rubber water stop ring 2, the steel pressing ring 3 and the hinge pressing plate 4 are fixedly connected by bolts 5. The bolts 5 fix each component to make the device more stable and safe; a gas bag is detachably installed on the rubber water stop ring 2 between the inner wall of the well hole 8 and the inner wall of the rubber water stop ring 2; an inward hinge slot 24 is opened on the outer wall of the rubber water stop ring 2. The end of the second hinge 42 is turned inwards around the rotating end 43 into the opening of the well hole 8 and inserted and installed in the hinge slot 24. The end of the second hinge 42 is fixed in the hinge slot 24 to press the outer surface of the rubber water stop ring 2 against the outer wall of the jacking pipe 6, which not only prevents the wear caused by the contact between the hinge and the outer wall of the jacking pipe 6, reduces the friction on the outer wall of the jacking pipe, but also shapes the rubber water stop ring 2 by the hinge, increasing the sealing performance between the outer wall of the rubber water stop ring and the outer wall of the jacking pipe, and enhancing the water stop effect.

[0027] A ventilation pipe 22 is penetrated and arranged in the rubber water stop ring 2. One end of the ventilation pipe 22 extends into the opening of the well hole 8 and is connected to the gas bag 21 through a check valve 23. The other end of the ventilation pipe 22 can be externally connected to an air charging device. The check valve 23 is set to at least 1, and the number of ventilation pipes 22 is equal to the number of check valves 23; after inflation, the gas bag 21 abuts against the inner wall of the well hole 8 and the inner wall of the rubber water stop ring 2 or abuts against the inner wall of the well hole 8 and the outer wall of the jacking pipe 6. The gas bag 21 expands and squeezes the inner wall of the well hole 8 and the inner wall of the rubber water stop ring 2 for sealing or the gas bag 21 expands and squeezes the inner wall of the well hole 8 and the outer wall of the jacking pipe 6 for sealing to prevent water leakage.

[0028] The ventilation pipe 22 is slidably and fixedly connected to the rubber water stop ring 2, which is convenient for adjusting the position of the gas bag.

[0029] The ventilation pipe 22 and the rubber water stop ring 2 are integrally formed by vulcanization, enhancing the overall sealing performance of the device.

[0030] The first hinge 41 is fixedly connected to the pre-embedded steel ring plate 1, the rubber water stop ring 2 and the steel pressing ring 3 by bolts 5. The bolts 5 fix each component to make the device more stable and safe.

[0031] The upper end of the rubber water stop ring 2 is fixed by bolts 5. The lower end of the rubber water stop ring 2 is turned inwards into the opening of the well hole 8. The outer side of the rubber water stop ring 2 contacts the outer wall of the jacking pipe 6 to form a sealing layer 10, and the sealing layer blocks the liquid in the well hole.

[0032] The embedded steel ring plate 1 and the well lining wall 7 are anchored and fixed through the fixing component 9. The fixing component 9 is fixedly connected to the embedded steel ring plate 1. After the fixing component 9 is welded and fixed to the embedded steel ring plate 1, it is anchored in the well lining wall 7, and the anchoring and fixing is more firm, ensuring the stability and safety of the device during use.

[0033] Embodiment 1 is a scheme in which the ventilation pipe and the rubber water stop ring are integrally formed:

[0034] First, a number of embedded bolts are arranged along the circumferential direction on the hole wall of the inlet hole. The airbag is installed on the ventilation pipe that is slidably connected to the rubber water stop ring through at least one check valve. Then, the embedded steel ring plate, rubber water stop ring, steel pressing ring and hinge pressing plate are successively installed through the embedded bolts and tightened by the pressing nuts. The hinge of the hinge pressing plate is inserted into the hinge slot of the rubber water stop ring.

[0035] As shown in the attached Figure 2 to the attached Figure 3 As shown, when the pipe jacking machine jacks into the portal and the head part passes through the hinge pressing plate, the air charging device inflates the airbag arranged between the inner wall of the well hole and the inner wall of the rubber water stop ring through the ventilation pipe to control the inflation of the airbag, and controls the contraction of the airbag through the check valve switch. Inflating the airbag causes the airbag to squeeze the inner wall of the well hole and then squeeze the inner wall of the rubber water stop ring so that it closely fits on the outer wall of the pipe jacking. The hinge of the hinge pressing plate is inserted into the hinge slot of the rubber water stop ring to stabilize the position of the rubber water stop ring, eliminating the friction between the outer wall of the pipe jacking and the end of the hinge pressing plate, improving the pipe jacking rate, improving work efficiency. The airbag, rubber water stop ring and hinge pressing plate cooperate with each other to achieve sealing and water stopping, and then ensure a good anti-leakage effect.

[0036] As shown in the attached Figure 4 As shown, when replacing components, continue to inflate the airbag. The airbag expands into the well hole and contacts the inner wall of the well hole and the outer wall of the pipe jacking. The airbag squeezes the inner wall of the well hole and the outer wall of the pipe jacking for sealing and water stopping. At this time, the pressing nut, hinge pressing plate, steel pressing ring, rubber water stop ring and ventilation pipe can be successively disassembled and replaced. After installing the new components, deflate the airbag through the check valve switch so that the airbag squeezes the inner wall of the well hole again and then squeezes the inner wall of the rubber water stop ring so that it closely fits on the outer wall of the pipe jacking for sealing and water stopping, so as to continue the pipe jacking construction, solving the problem that the components are worn during the construction process and cannot be replaced or the replacement is difficult, and improving the stability and safety of the construction.

[0037] Embodiment 2 is a scheme in which the ventilation pipe and the rubber water stop ring are slidably and fixedly connected:

[0038] First, a number of embedded bolts are arranged along the circumferential direction on the wall of the inlet of the tunnel. The airbag is installed on the ventilation pipe that is slidably connected to the rubber water stop ring through at least one check valve. Then, the embedded steel ring plate, rubber water stop ring, steel pressure ring and hinge pressing plate are successively installed through the embedded bolts and tightened by the compression nuts. The hinge of the hinge pressing plate is inserted into the hinge slot of the rubber water stop ring.

[0039] As shown in the Figure 2 to the attached Figure 3 figure. When the pipe jacking machine jacks into the portal and the nose part passes through the hinge pressing plate, the air charging device inflates the airbag arranged between the inner wall of the shaft and the inner wall of the rubber water stop ring through the ventilation pipe to control the inflation of the airbag, and controls the contraction of the airbag through the check valve switch. Inflating the airbag causes the airbag to squeeze the inner wall of the shaft and then squeeze the inner wall of the rubber water stop ring to make it closely fit on the outer wall of the pipe jacking. The hinge of the hinge pressing plate is inserted into the hinge slot of the rubber water stop ring to stabilize the position of the rubber water stop ring, eliminating the friction between the outer wall of the pipe jacking and the end of the hinge pressing plate, improving the jacking speed of the pipe jacking and the working efficiency. The airbag, rubber water stop ring and hinge pressing plate cooperate with each other to achieve sealing and water stopping, and thus ensure a good anti-leakage effect.

[0040] As shown in the Figure 5 figure. When replacing parts, after deflating the airbag through the check valve switch, control the length of the ventilation pipe sliding inside the rubber water stop ring extending out of the inner wall of the rubber water stop ring to push and pull the airbag for position adjustment, move the airbag between the inner wall of the shaft and the outer wall of the pipe jacking, and then inflate the airbag again to make the airbag squeeze the inner wall of the shaft and the outer wall of the pipe jacking for sealing and water stopping. At this time, the compression nuts, hinge pressing plates, steel pressure rings, rubber water stop rings and ventilation pipes can be successively disassembled and replaced. After replacing the new parts and reinstalling them, control the ventilation pipe sliding inside the rubber water stop ring to adjust the position of the airbag, move the airbag between the inner wall of the shaft and the inner wall of the rubber water stop ring, and inflate the airbag to make the airbag squeeze the inner wall of the shaft again and then squeeze the inner wall of the rubber water stop ring to make it closely fit on the outer wall of the pipe jacking for sealing and water stopping, so as to continue the pipe jacking construction, solving the problem that the parts are worn during the construction process and cannot be replaced or the replacement is difficult, and improving the stability and safety of the construction.

Claims

1. A water stop ring with a split hinge rubber ring, comprising a pre-embedded steel ring plate (1) which is arranged around the opening of the well hole (8) and fixedly arranged on the inner lining wall (7) of the well. On the side of the pre-embedded steel ring plate (1) away from the inner lining wall (7) of the well, a rubber water stop ring (2) and a steel pressing ring (3) are sequentially arranged. A plurality of hinge pressing plates (4) are arranged around the outer side of the steel pressing ring (3). The hinge pressing plate (4) includes a first hinge (41) fixedly connected to the steel pressing ring (3) and a second hinge (42) extending into the opening of the well hole (8). The pre-embedded steel ring plate (1), the rubber water stop ring (2), the steel pressing ring (3) and the hinge pressing plate (4) are fixedly connected by bolts (5). An air bag located between the inner wall of the well hole (8) and the inner wall of the rubber water stop ring (2) is detachably installed on the rubber water stop ring (2). It is characterized in that: An inwardly opening hinge slot (24) is provided on the outer wall of the rubber water stop ring (2). The end of the second hinge (42) is folded inwardly around the rotating end (43) into the opening of the well hole (8) and inserted and installed in the hinge slot (24). The end of the second hinge (42) is fixed in the hinge slot (24) to press the outer surface of the rubber water stop ring (2) against the outer wall of the jacking pipe (6). A ventilation pipe (22) is penetrated through the rubber water stop ring (2). One end of the ventilation pipe (22) extends into the opening of the well hole (8) and is connected to the airbag (21) through a check valve (23). The other end of the ventilation pipe (22) can be externally connected to an air charging device. After inflation, the airbag (21) abuts against the inner wall of the well hole (8) and the inner wall of the rubber water stop ring (2) or abuts against the inner wall of the well hole (8) and the outer wall of the jacking pipe (6). The ventilation pipe (22) is slidably and fixedly connected to the rubber water stop ring (2). At least one check valve (23) is provided, and the number of the ventilation pipes (22) is equal to the number of the check valves (23).

2. The water stop ring with a split hinge rubber ring according to claim 1, characterized in that: The ventilation pipe (22) and the rubber water stop ring (2) are integrally formed by vulcanization.

3. The water stop ring with a split hinge rubber ring according to claim 2, characterized in that: The first hinge (41) is fixedly connected to the embedded steel ring plate (1), the rubber water stop ring (2), and the steel pressing ring (3) through bolts (5).

4. The water stop ring with a split hinge rubber ring according to claim 3, characterized in that: The upper end of the rubber water stop ring (2) is fixed by bolts (5). The lower end of the rubber water stop ring (2) is folded inwardly into the opening of the well hole (8). The outer side of the rubber water stop ring (2) contacts the outer wall of the jacking pipe (6) to form a sealing layer (10).

5. The water stop ring with a split hinge rubber ring according to claim 4, characterized in that: The embedded steel ring plate (1) and the well lining wall (7) are anchored and fixed through fixing components (9), and the fixing components (9) are fixedly connected to the embedded steel ring plate (1).

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